Seoul Subway Line 3

Construction began in 1980, and most of the current line opened (Gupabal–Yangjae; Jichuk opened in 1990) after completion of work in two stages during 1985, along with brother subway Line 4. In October 1993, a second extension to the south was opened (Yangjae–Suseo), giving Seoul the current Line 3.

In March 1996, the Ilsan Line (Daehwa–Jichuk), which is considered the third extension to the north was opened, and connected the city of Goyang with Seoul. Seoul's portion of Line 3 and the Ilsan part of Line 3 operate as one combined line, with trains running from one end to the other. The respective stations are operated by two different companies, though, so they are sometimes listed separately. There are 2 depots near Jichuk station and Suseo station, which are for both Korail and Seoul Metro.

A 3 km extension opened on February 18, 2010, stretching from Suseo to Garak Market (Line 8) and Ogeum (Line 5).

On December 27, 2014, Wonheung station opened between Wondang and Samsong stations.

In January 2013, the Seoul Metropolitan Rapid Transit Corporation, published free guidebooks in three languages: English, Japanese and Chinese (simplified and traditional), which features eight tours as well as recommendations for accommodations, restaurants and shopping centers. The tours are designed with different themes for travel along the subway lines, e.g. Korean traditional culture. Which goes from Jongno 3-ga station to Anguk station and Gyeongbokgung station on this line that showcases antique shops and art galleries of Insa-dong.[4]

• Subways in South Korea
• Seoul Metropolitan Subway

Wikimedia Commons has media related to Seoul Subway Line 3.

• Seoul Metropolitan Government's Line 3 extension page (in Korean) includes a route map and status information for the extension from Suseo to Garak Market.
• UrbanRail.Net's Seoul Subway Page
• Map, station and route finder